Dishwashing machine



Jan. 3, 1928. 1,655,289

H. E. MERSELES ET AL DISHWASHING MACHINE Original Filed Mays. 1921 2Sheets-Sheet 1 MWM 544/1 ATTORNEY Jan. 3, 1928.

H. E. MERSELES ET AL.

DISHWASHING MACHINE Original Filed May 5, 1921 2 Sheets-Sim 2 PatentedJan. 3,1928. t a

UNITED STATES PATENT OFFICE.

HERBERT E. MER SELES AND HENRY R MERSELES, OF SIMMONS, OF NEW ROCHELLE,AND PAUL H. ENGEL, SIGNORS, BY MESNE ASSIGNMENTS, '10 HOBARTMANUFACTURING COMPANY, 01' TROY, OHIO, A CORPORATION OF OHIO. r

BRONXVILLE, owns 1'.

DISHWASHING MACHINE.

OF NEW YORK, N. Y., AS-,

Original application filed May 5, 1921, Serial No.-487,046. Divided andthis application filed January 19 1924. Serial No. 687,180.

This invention relates to dish washing a single rigid 'nonrotary part orframe 11 machines and aims topr'ovide an efiicient which provides thestationary part of the dish washing machine adapted to household (lIShwashing mechanism, the stationary part use. A further ob'ect of theinvent1on is of the actuating mechanism, and includes so to combine adis washing machine with supporting bearings for the rotary portions akitchen sink that the dish washing maof these mechanisms. In the formshown, chine occupies little or no floor space in adthe frame includes apump body 12 and dition to that required for the sink, or for a motorcasing 13 secured tothe bottom the sink and its drain board, requireslittle 1% of the pump body. The pump body is or no additional plumbing,and in no way provided with inlet 0 enings 15 'ust above interferes withthe ordinary use of the sink. its bottom 14 and with an upwar y direct-jAn important feature of the invention coned discharge -neck 16. A flange1 at the sists in combining with a: sink a dish washperiphery of thebottom 14 projectslatering unit, that is, a complete self-contained ally"further than any other part of the device including dish washingmechanism and frame 11 and is adapted to be secured about actuatingmechanism, all compactly mountthe periphery of an opening in the bottomed on a single ri id frame so that thenmt in any type of receptacle sothat the bottom may be complete y assembled before it is 14: of the pumpbody will provide a closure applied to the sink in which it is to be torsuch opening. The bottom 14 contains mounted. a

with a sink possesses important practical opening of the receptacle inwhich thecunit The combination of such a unit an opening 18 which mayserve as the drain 7 advantages, since it makes possible the manuismounted. A rotary shaft 19 is mounted shown in Fi 1 with the part of thedish scribed and claimed in our aforesaid coclosure for :Eacture andshipment of sinks by one manuin the frame 11 and carries a motorarmaiacturer and the manufacture and shipment tu're within the motorcasing 13 and an imof another manufacturer of dish washing peller 20within an impeller chamber 21 in units completely assembled and adaptedto the pump body 12. In the discharge neck be combined with such sinksat the. placeof 16 of the pump body is mounted a rotary huh use" 22hearing radial arms 23 provided with up- A self-contained dish washingunit is dewardly directed discharge nozzles 24, some scribed and claimedin our co-pending appliof which are inclined so that the liquiddiscation filed May 5, 1921, Serial No. 467,046, chargedthrough themcauses a rotation of of. which this application is a division. The thehub and arms. The hub 22 is retained present application is directed tothe comwin the discharge neck by a bushing 25 whosebining of such unitswith sinks. lower edge is engaged by an external flange The inventionmay best be understood 26 at the lower end of the hub. The bushing froma detailed description of the specific 25 is removably held in the neck16 by embodiments of it which are illustrated in screw 28 which passesthrough the neck and the accompanying drawings, in which enters thegroove 27 in the bushing. Fig. 1 is a side view, partly in axial sec-Figs. 2 and 3 show the dish washing unit tion, of a dish washing'unit;10 mounted in a kitchen sink 30. The sink Fig. 2 is an elevation partlyin section 30 may be of the usual size and shape except showing a dishwashing unit mounted inthat it is provided at the center of its bottomthe bottom of a sink; and with a circular well 31 at the bottom of Fig.3 is a plan view of the arrangement which is an opening 32. The unit 10is -mounted in this opening 32 b securing its washing mechanism abovethe bottom of flange 17 to the bottom of t e well about the sinkremoved. the periphery of the opening so that the A dish washing unit 10of the type debottom 14 of the pump body 12 forms a the opening 32. Thedepth of pending application is shown in Fig. 1. the well 31 is suchthat while the entire pump This unit combines dish washing mechanismcasing 12 is below the bottom 33 of the and actuating mechanismtherefor, and has sink 30, the arms 23 are above the bottom ered by.ascreen 39 which is at the level of the bottom 33 of the sink. The drainopening in the bottom 14 of the pump body 12 of the unit frame may beconnected to the drain pipe of the sink through a valve 40. It is notnecessary to connect this opening with a source of hot water as the well31 may be filled with hot water from the hot water faucet 41 of thesink. This is done before the cover 37 is placed in position.

In using the dish washing unit the well 31 is first filled with hotwater from the faucet 41 to a depth sufiicient to cover the inletopenings 15 of the pump body of the unit. A detergent may be added tothis water. The dishes to be Washed are placed in the rack 35 and thecover 37 is placed over the rack. The motor is then operated. rotatingthe shaft 19. This rot-ates the impeller 20, causing it to draw waterinto the impeller chamber through the inlets 15 and to force this waterthrough the hub 22 into the arms 23 and out through the dischargenozzles 24. As the arms are rotated b the reaction of the waterdischarged throug the inclined nozzles, the water is thrown forciblyupward against all the dishes or other articles in the rack 35,thoroughly cleansing them in a very short time. During this operation,the solid matter removed from the dishes is caught on the screen 39 andis thus prevented from entering the pump body. On the completion of thewashing, the water in the well 31 is withdrawn by opening the valve 40.The cover 37 is then removed and the well 31 is filled with clean waterfrom the faucet 41. The cover 37 is replaced and the motor is againplaced in operation to rinse the dishes and remove all soapy water fromthem.

When it is desired to use the sink 3O independently of the dish washingunit, the cover 37 and the rack 35 are removed from the sink. The screen39 may then be removed so that the screw 28 may be reached and loosened,permitting the withdrawal of the bushing 25 from the discharge neck 16so that the arms 23, hub 22 and bushing 25 may be lifted out.

The screen 39 is then replaced and a lug or cap 42 placed in thedischarge nec 16 (Fig. 3). When this has been done no portion of thewashing mechanism remains within the sink 30 so that the sink may beused in the ordinary manner.

What is claimed is:

1. The combination of a sink having a substantially flat bottom and awell in its bot tom, an upwardly directed conduit fixed in said Well andterminating below the level of the bottom of the sink, means for forcingliquid upwardly through said conduit, and means for distributing saidliquid in the sink located above the bottom of the sink and dctachablysecured to said conduit.

2. The combination of a sink having a well in its bottom and an openingat the bottom of said well, of a dish washing unit comprising a rigidframe including a pump casing located wholly below the bottom of thesink and having an intake opening communicating with said well, and anupwardly directed discharge neck terminating substantially at the levelof the bottom of said sink, and a motor casing below the pump casing,and formed to provide a closure for the opening in the bottom of thewell; a motor in said motor casing having a shaft projecting into saidpump casing; an impeller mounted upon said shaft in said pump casing; arotar hollow hub detachably mounted in said neck; and hollow spray armsextending radially from said hub above the bottom of said sink andprovided with upwardly directed inclined discharge orifices.

3. In a dish washing machine, the combination of a support for articlesto be washed,

a casing enclosing the support and having opposite side walls merginggradually into its top to provide a deflecting surface arching over thesupport, and a distributor located wholly under the support, rotaryabout a vertical axis midway between said side walls, and having at itsbottom an axial intake opening through which liquid is forced underpressure, and on its top at opposite sides of its axis dischargeorifices directing liquid issuing therefrom up through the central andouter portions of the support and obliquely against opposite sideportions of the deflecting surface at the same time.

In testimony whereof we have hereunto set our hands.

HERBERT E. MERSELES. HENRY R. MERSELES. CHARLES F. SIMMONS. PAUL H.ENGEL.

